109 229 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite, with 2 known prime factors. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁴⁴

Factored

Factor	Digits	Bits	Date
7680983281	10	32.8	old
2929719921407	13	41.4	2008-07-26 09:17:10

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	659 / 1566

Estimated T-Level: 32.1 ⓘ

TF below 2^102 is very unlikely to find new factors due to ECM effort.

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	No proof (small exponent)	2017-09-22	Oliver Kruse	8375F99626C7BF0E	2	0	1	3
Verified	No proof (small exponent)	2017-10-13	kkmrkkblmbrbk	8375F99626C7BF0E	2	98628	1	3
Verified	No proof (small exponent)	2020-04-17	Oliver Kruse	B42575C174E10CB7	2	43969	5	3
Verified	Not Uploaded	2022-04-15	LordJulius	B42575C174E10CB7	2	18249	5	3
Verified	Certified Good	2022-11-08	LordJulius	B42575C174E10CB7	2	37473	5	3

History

Date	User	Type	Result
2026-02-10	Jason Lynch	NF-PM1	B1=424349000, B2=229239762651900
2025-12-16	ViliamF	NF-PM1	B1=100000000, B2=2097943848000
2022-11-08	John Hocking	CERT	Proof certified good
2022-11-08	LordJulius	C-PRP	M109229/7680983281/2929719921407 : B42575C174E10CB7 Proof Not Uploaded Proof Power: 5
2022-05-07	LordJulius	NF	no factor TF: 61-62
2022-05-07	LordJulius	NF	no factor TF: 62-63
2022-05-07	LordJulius	NF	no factor TF: 60-61
2022-05-07	LordJulius	NF	no factor TF: 59-60
2022-05-07	LordJulius	NF	no factor TF: 58-59
2022-05-07	LordJulius	NF	no factor TF: 57-58
2022-04-15	LordJulius	C-PRP	M109229/7680983281/2929719921407 : B42575C174E10CB7 Proof Not Uploaded Proof Power: 5
2020-04-17	Oliver Kruse	C-PRP	M109229/7680983281/2929719921407 : B42575C174E10CB7
2017-10-13	kkmrkkblmbrbk	C-PRP	M109229/7680983281/2929719921407 : 8375F99626C7BF0E
2017-09-22	Oliver Kruse	C-PRP	M109229/7680983281/2929719921407 : 8375F99626C7BF0E
2017-09-21	Oliver Kruse	C-PRP	M109229/7680983281/2929719921407 : 8375F99626C7BF0E
2016-12-10	kkmrkkblmbrbk	NF-PM1	B1=100000000, B2=2000000000, E=12
2008-07-26	J Feitsma	F	Factor: 2929719921407